Предмет: Химия, автор: oksanocka4645

w(H)=1,6
w(B)=22,2
HxNyO£
Mr(HxNyO£)-?

Ответы

Автор ответа: abubakrakramov125
0

Ответ:

63

Объяснение:

H:N:O

1.6:22.2:76.2

1: 14: 16

1.6: 1.6: 4.8

1: 1: 3

HNO3

M(HNO3)=1+14+16×3=63

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